Analysis

  • max time kernel
    4s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2024 19:37

General

  • Target

    b303cf21786ffb3a53bcabd6e4f0c810N.exe

  • Size

    2.0MB

  • MD5

    b303cf21786ffb3a53bcabd6e4f0c810

  • SHA1

    213fa018f83eb7017cf22da7679df37b055ddf98

  • SHA256

    e0165e0bc92d206d65c35c5f5859dff9d8b40a5feec7500146732be859551665

  • SHA512

    8d1d3b2a7653a2c037725d068792e532f18f8d407ed97f7aa1b4b2ba9492d20cbf145a13f8238f1be8aefa875acdb8bbb6f07a898e1d9d3a7b5d02f85c024daf

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYs:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YG

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b303cf21786ffb3a53bcabd6e4f0c810N.exe
    "C:\Users\Admin\AppData\Local\Temp\b303cf21786ffb3a53bcabd6e4f0c810N.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3216
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:3488
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3216 -s 548
          3⤵
          • Program crash
          PID:4468
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4976
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1108
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
            PID:1112
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
              4⤵
              • Scheduled Task/Job: Scheduled Task
              PID:2764
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\jDfjo2BkqDba.bat" "
              4⤵
                PID:116
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  5⤵
                    PID:3944
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    5⤵
                    • System Network Configuration Discovery: Internet Connection Discovery
                    • Runs ping.exe
                    PID:1332
                  • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                    "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                    5⤵
                      PID:1492
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 1112 -s 2264
                    4⤵
                    • Program crash
                    PID:4468
              • C:\Users\Admin\AppData\Local\Temp\b303cf21786ffb3a53bcabd6e4f0c810N.exe
                "C:\Users\Admin\AppData\Local\Temp\b303cf21786ffb3a53bcabd6e4f0c810N.exe"
                2⤵
                • System Location Discovery: System Language Discovery
                PID:2548
              • C:\Windows\SysWOW64\schtasks.exe
                "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                2⤵
                • System Location Discovery: System Language Discovery
                • Scheduled Task/Job: Scheduled Task
                PID:116
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3216 -ip 3216
              1⤵
                PID:220
              • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                1⤵
                  PID:4868
                  • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                    "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                    2⤵
                      PID:4952
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k
                        3⤵
                          PID:2460
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 4952 -s 520
                          3⤵
                          • Program crash
                          PID:3392
                      • C:\Users\Admin\AppData\Local\Temp\windef.exe
                        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                        2⤵
                          PID:2292
                          • C:\Windows\SysWOW64\schtasks.exe
                            "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
                            3⤵
                            • Scheduled Task/Job: Scheduled Task
                            PID:2312
                          • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                            "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                            3⤵
                              PID:1956
                              • C:\Windows\SysWOW64\schtasks.exe
                                "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
                                4⤵
                                • Scheduled Task/Job: Scheduled Task
                                PID:3184
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QQFARX2hlyJw.bat" "
                                4⤵
                                  PID:3300
                                  • C:\Windows\SysWOW64\chcp.com
                                    chcp 65001
                                    5⤵
                                      PID:3392
                                    • C:\Windows\SysWOW64\PING.EXE
                                      ping -n 10 localhost
                                      5⤵
                                      • System Network Configuration Discovery: Internet Connection Discovery
                                      • Runs ping.exe
                                      PID:2500
                                    • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
                                      "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
                                      5⤵
                                        PID:396
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 2272
                                      4⤵
                                      • Program crash
                                      PID:776
                                • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                                  "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                                  2⤵
                                    PID:992
                                  • C:\Windows\SysWOW64\schtasks.exe
                                    "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                                    2⤵
                                    • Scheduled Task/Job: Scheduled Task
                                    PID:2432
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4952 -ip 4952
                                  1⤵
                                    PID:4532
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1112 -ip 1112
                                    1⤵
                                      PID:3584
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1956 -ip 1956
                                      1⤵
                                        PID:4792
                                      • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                        "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                        1⤵
                                          PID:4992
                                        • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                          "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                          1⤵
                                            PID:2384

                                          Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\windef.exe.log

                                            Filesize

                                            1KB

                                            MD5

                                            10eab9c2684febb5327b6976f2047587

                                            SHA1

                                            a12ed54146a7f5c4c580416aecb899549712449e

                                            SHA256

                                            f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

                                            SHA512

                                            7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

                                          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\winsock.exe.log

                                            Filesize

                                            701B

                                            MD5

                                            5de8527438c860bfa3140dc420a03e52

                                            SHA1

                                            235af682986b3292f20d8d71a8671353f5d6e16d

                                            SHA256

                                            d9d92cd6e7a4507912965138b8d1eabb3f188f4dfcb61115ee99dc2c0fd43a92

                                            SHA512

                                            77c3a774a2235c55ad520f1bf0c71fa3d3f0e7cf478a78e0d4dd6d253ee12a9859acc9ee822664467387788a2655a18373c8fcf08ea0d001549d3d4391b00bf8

                                          • C:\Users\Admin\AppData\Local\Temp\QQFARX2hlyJw.bat

                                            Filesize

                                            208B

                                            MD5

                                            c4d57a570b99d4527cdce3ad84aed3e4

                                            SHA1

                                            0c9a7771de903e94bd08852b9867803dad6c1b08

                                            SHA256

                                            bd093f6cdf8969055b0a8c77832adb1f7066662341f7edf7606a6b7b34efbbe2

                                            SHA512

                                            a11c4e2f1c07b511446c4c7f0c4190097c522b43fe1023665297cf5c05c5c85b707795d70f0f9361b9bdbacacae9e2f18b4c9877108e5e39423c1a1e53397f05

                                          • C:\Users\Admin\AppData\Local\Temp\jDfjo2BkqDba.bat

                                            Filesize

                                            208B

                                            MD5

                                            15aeab7ba2cb771f32af1f6f3ff0210e

                                            SHA1

                                            a3b12d9d87e965fbbe050f4628c04d61881ec74d

                                            SHA256

                                            e717952278fa87684eb92356d6834f0cd70da2c76640dc634b9ee323b018d7cf

                                            SHA512

                                            99aefffeb0c9c2ea701a878d2fd36b02ba832a654e4c0c96cf0b4f91f031197fd212a6bf7c2ddda6849f12e9f5a7b0e839a83c8aecbc879c3b038b59683762c7

                                          • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                                            Filesize

                                            405KB

                                            MD5

                                            b8ba87ee4c3fc085a2fed0d839aadce1

                                            SHA1

                                            b3a2e3256406330e8b1779199bb2b9865122d766

                                            SHA256

                                            4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                                            SHA512

                                            7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                                          • C:\Users\Admin\AppData\Local\Temp\windef.exe

                                            Filesize

                                            349KB

                                            MD5

                                            b4a202e03d4135484d0e730173abcc72

                                            SHA1

                                            01b30014545ea526c15a60931d676f9392ea0c70

                                            SHA256

                                            7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                                            SHA512

                                            632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                                          • C:\Users\Admin\AppData\Roaming\Logs\08-21-2024

                                            Filesize

                                            224B

                                            MD5

                                            244fc86d93a153a6adadfeedfd8bc732

                                            SHA1

                                            c8c92a56d303a930c8dde189907441e2a23f40ef

                                            SHA256

                                            7368b04dadb6c0c70a40a22255fd0b189690f39ea5f75775cc9bd85a01ddfd26

                                            SHA512

                                            cd9b857178307c4e443610db8188c9343dd556baf0746e4873a8aceb1ece0eba0295f778b78e7cceab8765d0299f9627393ed372918c3dae7c2d43a4a9543731

                                          • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe

                                            Filesize

                                            2.0MB

                                            MD5

                                            e4ecd84e7d01af20b209a28d7bc7884a

                                            SHA1

                                            9403a8938ba0f249606bfab49ba44c03620467d1

                                            SHA256

                                            08cf400ba37d2153d855e96fe1390962be16707e41f23b776105084ef1bc364e

                                            SHA512

                                            dea5c106987b3b7b43d245581399c13047266ca30ab8f210bdf880a9610b7b4bdaecb2e2cc790792f4144116b4ea812aec41e8ce5bc54e3100f7d170f2896e45

                                          • memory/1112-44-0x0000000006C80000-0x0000000006C8A000-memory.dmp

                                            Filesize

                                            40KB

                                          • memory/1916-18-0x0000000003A70000-0x0000000003A71000-memory.dmp

                                            Filesize

                                            4KB

                                          • memory/2548-19-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/2548-27-0x0000000000400000-0x0000000000420000-memory.dmp

                                            Filesize

                                            128KB

                                          • memory/4868-92-0x0000000000550000-0x000000000075A000-memory.dmp

                                            Filesize

                                            2.0MB

                                          • memory/4976-36-0x0000000006090000-0x00000000060CC000-memory.dmp

                                            Filesize

                                            240KB

                                          • memory/4976-35-0x0000000005B50000-0x0000000005B62000-memory.dmp

                                            Filesize

                                            72KB

                                          • memory/4976-34-0x0000000004F10000-0x0000000004F76000-memory.dmp

                                            Filesize

                                            408KB

                                          • memory/4976-33-0x0000000004E50000-0x0000000004EE2000-memory.dmp

                                            Filesize

                                            584KB

                                          • memory/4976-32-0x0000000005300000-0x00000000058A4000-memory.dmp

                                            Filesize

                                            5.6MB

                                          • memory/4976-29-0x0000000000520000-0x000000000057E000-memory.dmp

                                            Filesize

                                            376KB